"Ninku the Movie" is a 1995 anime film based on the manga series "Ninku" by Kōji Kiriyama. The story is set in a fictional world where the Ninku, a group of ninja warriors with unique abilities, once served as protectors of the land. However, after a war that led to the downfall of their clan, the Ninku were disbanded, and their members scattered. The film centers on Fusuke, a young boy and the last surviving member of the Ninku, who possesses the ability to manipulate wind. Fusuke is on a journey to find his missing comrades and restore the honor of the Ninku clan.

The narrative begins with Fusuke encountering a mysterious girl named Aicho, who is being pursued by a powerful and ruthless organization known as the Empire. Aicho holds a secret that could threaten the Empire's plans for domination, and Fusuke becomes her protector. As they travel together, Fusuke faces numerous adversaries, including former Ninku members who have turned against their own kind. The film explores themes of loyalty, betrayal, and the struggle to preserve one's identity in the face of overwhelming odds.

Key characters include Fusuke, whose determination and wind-based techniques make him a formidable fighter; Aicho, whose past is intertwined with the Empire's dark ambitions; and various antagonists who represent the Empire's military might and their desire to eliminate the Ninku legacy. The film builds toward a climactic battle where Fusuke must confront the Empire's forces and uncover the truth behind Aicho's connection to the Ninku clan. The story combines action, adventure, and elements of mystery, offering a self-contained narrative that expands on the world and characters of the original manga.